This is a calculation of the lens field of view of the software, very simple but very practical.

这是一个计算镜头视场的软件，非常简单但是很实用。

youdao

Wastes sorting itself is a very simple and practical waste management option, but it faces so many obstacles regarding to its implementation.

垃圾分类本身是一个很简单，可行的垃圾处理方案，但怎么实施起来，总是困难重重。

youdao

Wastes sorting itself is a very simple and practical waste management option, but it faces so many obstacles regarding to its implementation.

垃圾分类本身是一个很简单，可行的垃圾处理方案，但怎么实施起来，总是困难重重。

youdao